TERMINALS OF ECU
DCM (TELEMATICS TRANSCEIVER)
*a | to Telephone Antenna (Sub) | *b | to GPS Antenna |
*c | to Telephone Antenna (Main) | - | - |
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
---|---|---|---|---|
J168-1 (USB-) | - | USB communication line | - | - |
J168-2 (USB+) | - | USB communication line | - | - |
J168-3 (USBS) - Body ground | Shielded - Body ground | Shield ground | Always | Below 1 V |
J157-31 (USBG) - Body ground | G - Body ground | DCM (Telematics Transceiver) power supply ground signal | Always | Below 1 V |
J157-17 (VOT+) - J157-20 (E) | P - W-B | Sent voice signal | Vehicle occupant speaking to operator | A waveform synchronized with the voice signals received voice is output |
J157-15 (USBV) - J157-20 (E) | L - W-B | DCM (Telematics Transceiver) power supply signal | Engine switch off | Below 1 V |
Engine switch on (IG) | 4.5 to 5.25 V | |||
J157-33 (VOT-) - J157-20 (E) | SB - W-B | Sent voice signal | Vehicle occupant speaking to operator | A waveform synchronized with the received voice is output |
J157-34 (VOR-) - J157-20 (E) | LG - W-B | Receive voice signal | Operator speaking to vehicle occupant | A waveform synchronized with the sent voice is output |
J157-18 (VOR+) - J157-20 (E) | BR - W-B | Receive voice signal | Operator speaking to vehicle occupant | A waveform synchronized with the sent voice is output |
RADIO RECEIVER ASSEMBLY
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
---|---|---|---|---|
J149-15 (VOT+) - J148-1 (GND1) | BR - W-B | Sent voice signal | Destination assist service in use and vehicle occupant speaking to operator | A waveform synchronized with the sent voice is output |
J149-10 (USBV) - J148-1 (GND1) | L - W-B | DCM (Telematics transceiver) power supply | Engine switch on (ACC) | 4.75 to 5.25 V |
Engine switch off | A waveform synchronized with sound is output | |||
J149-11 (USBG) - J148-1 (GND1) | G - W-B | DCM (Telematics Transceiver) power supply ground signal | Always | Below 1 V |
J149-12 (SGND) - Body ground | Shielded - Body ground | Shield ground | Always | Below 1 V |
J149-13 (VOR+) - J148-1 (GND1) | P - W-B | Receive voice signal | Destination assist service in use and operator speaking to vehicle occupant | A waveform synchronized with the received voice is output |
J149-14 (VOR-) - J148-1 (GND1) | SB - W-B | Receive voice signal | Destination assist service in use and operator speaking to vehicle occupant | A waveform synchronized with the received voice is output |
J149-16 (VOT-) - J148-1 (GND1) | LG - W-B | Sent voice signal | Destination assist service in use and vehicle occupant speaking to operator | A waveform synchronized with the sent voice is output |
NAVIGATION ECU (w/ Navigation System)
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
---|---|---|---|---|
J164-2 (USB-) | - | USB communication line | - | - |
J164-1 (USB+) | - | USB communication line | - | - |
J164-3 (USBS) - Body ground | Shielded - Body ground | Shield ground | Always | Below 1 V |
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Sfi System: Basic Inspection
CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following procedure, the location of the problem ca ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Drive Belt: Precaution
PRECAUTION NOTICE:
Do not apply or add any oil or grease to the belt tensioner to prevent abnormal noises from the belt tensioner pulley, belt squealing, etc.
Do not allow oil or grease to adhere to the moving parts of the belt tensioner, as this may cause malfunctions.
If oil or grease ...